Slug catcher



June 10, 1941. F M L OLM Em 2,244,999

SLUG CATGHER Fil'ed July 31, 11940 2 Sheets-Sheet 1 Inventor Patented June 10, 1941 UNITED STATES Ja s -v Maa n l s w n r Hanover Pa., assignors to Revonah Spinning Mills,

Hanover, Pa.

Application July 31, 1940, Serial No. 348358 7 This invention relates to a slug catcher or detector for yarn and the like, and has for the primary object the provision of an efiicient and inexpensive device of the above stated character which will be extremely easy to install and may be readily cleaned of lint and other foreign material to assure free passage of yarn therethrough and which will automatically detect and prevent the passing of an enlargement or defect in the yarn, frequently termed a slug, beyond the device and consequently prevent defective yarn from being made up into yarn material.

Another object of this invention is the provision of a construction which may be readily and accurately adjusted for the passing of different size yarn therethrough and which may be easily threaded by one hand of the operator.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts which will be hereinafter more fully described and claimed.

For a complete understanding of our invention, reference is to be had to the following description and accompanying drawings, in which Figure 1 is a front elevation illustrating a slug catcher constructed in accordance with our invention.

Figure 2 is a side elevation, partly in section, illustrating the present invention.

Figure 3 is a top plan view illustrating the device.

Figure 4 is a fragmentary front elevation illustrating the device in the act of catc ing a slug in yarn.

Figure 5 is a sectional view taken on the line 5-5 of Figure 1.

Figure 6 is a sectional view taken on the line 6-6 of Figure 1.

Figure 7 is a sectional view taken on the line 'I---'! of Figure 1.

Referring in detail to the drawings, the numeral 5 indicates an attaching bracket consisting of an arm 6 having integral with one end an attaching plate I and a supporting plate 8 integral with the other end. The arm 6 extends in an upwardly inclined plane to position the supporting plate 8 laterally of the attaching plate I and in a plane *thereabove.

The attaching plate I is bolted or otherwise secured on a machine, a fragmentary portion of which is indicated by the character 9.

Detachably secured to the upper and lower edges of the supporting plate 8 are guide eyes Ill of the split type and are 'reversely' arranged to each other so that the yarn is brought into the lowermost eye 'fromone direction" and is brought into the uppermost eye from an opposite direction. The threading of the yarn'into the eyes can be easily brought about by one hand of the operator. 7

A clamping plate II is detachably secured on the supporting plate between the eyes I0 by stud bolts I2 and is employed for removably and ad ustably clamping on the supporting plate a guide bar or element I3 of elongated formation and of rectangular shape in cross section presenting flat faces thereto, any one of which may be readily brought into an operative position of guiding the yarn from one eye to the other eye.

Pivotally mounted on the supporting plate 8 are superimposed dogs I4 having serrated ends I5 disposed opposite the guide bar or element I3. The distance between the serrated ends and one face of the guide bar or element can be easily varied by adjusting the guide bar or element in the clamping plate towards and from the serrated ends of the dogs.

Stops I6 are arranged on the supporting plate 8 for limiting the downward pivotal movement of the dogs.

In setting up the device for operation, the space between the guide bar or element I3 and the serrated ends of the dogs when in engagement with the stops I6 is gauged to a size slightly larger than the external diameter of yarn so that the yarn may readily slide over'the guide bar or element I3 until a defect or enlargement occurs in the yarn which is engaged by the lowermost dog and the latter is caused to swing upwardly and bind the yarn against the guide bar or element and thereby bring about breaking of the yarn preventing the defect from reaching the material being made up of the yarn. Should the defect pass the lowermost dog it will be engaged by the uppermost dog and thereby grip and bring about the breaking of the yarn.

The yarn during its travel through the present invention is continuously twisting or rotating about itself so that in some intances it is possible for slugs to pass free of the first dog owing to the slugs having fiat sides. However, a large percentage of such slugs will be caught by *the second dog. Further, it will be seen that the yarn travels in a straight course through the device and will not be distorted.

As the face of the guide bar or element wears the latter may have its position reversed on the supporting plate so as to present another face opposite the serrated ends of the dogs.

A device constructed in accordance with the foregoing description and as shown in the drawings'will be less liable to become choked from foreign matter, lint or the like and it will be noted that the yarn when removed therefrom leaves the device readily accessible to remove any lintor particles of foreign matter that may accumulate within the guide space between the serrated ends of the dogs and one face of the guide bar or element 13. that the device is extremely simple to adjust to accommodate yarn of different sizes and further that an operator through the use of' onehandcombination and n rrahgementlof parts may be.

made without departing jrom the scope and spiriteo' l inv ntid as cl im c Having thus described the invention, what we claimlszg ,1 i 7. .1. .7.

- Ina device of the-characterdescribed, a ver- Also, it will be seen ti'cally arranged fiat supporting plate, a mount ing for said plate, split type eyes secured on said mounting above and below said plate and arranged in vertical alignment to guide yarn Ver tically relative to one of the vertical faces oi said plate, superimposed gravity ac'tuated dogs pivoted on said last mentioned vertical face of the plate, stops on said plate to limit the downward pivotal movement of the dogs and normally supporting said dogs on an inclined plane, a clamp member det'achably secured to said plate, and an elongated vertically arranged guide member adjustab-ly secured on the plate between the eyes by said clamp member and adjustableon the plate laterally of the eyes and towards and from the free ends of the dogs, said guide member being of rectangular shape in cross section providing a plurality of flat faces any one of which may be disposed opposite the free ends of the dogs and over which the thread passes between said eyes and relative to, the free ends of the dogs, any one of said faces of said elongated guide memberbeing capable of resting against the plate under the influence of said clamp m m v v 1,.

I JAMES E. MALCQLM R E W ER- .Y 

